Portion of a shoe outsole



FIG. 1 is a first perspective view of a portion of a shoe outsole showing my new design;

FIG. 2 is a second perspective view thereof; and,

FIG. 3 is a plan view thereof.

The broken line showing immediately adjacent the outer longitudinal end portions of the design, and the inner unshaded region, represents an unclaimed boundary of the claimed design. The broken line showing of the remainder of the shoe, is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a shoe outsole, as shown and described. 